<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <!-- 搜索表单和添加用户区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            clearable
            v-model="queryInfo.query"
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStatusChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改用户操作 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除用户操作 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              @click="deleteUser(scope.row.id)"
            ></el-button>
            <!-- 给用户分配角色操作 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                @click="showSettingRoleDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户表单框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClose"
    >
      <!-- 对话框内容主体部分 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="eidtDialogClosed"
    >
      <el-form
        :rules="editFormRules"
        ref="editFormRef"
        :model="editForm"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 给用户分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleclosed"
    >
      <div>
        <p style="margin-left: 40px">当前的用户: {{ userInfo.username }}</p>
        <p style="margin-left: 40px">当前的角色: {{ userInfo.role_name }}</p>
        <el-select
          v-model="setRoleId"
          placeholder="请选择"
          style="margin-left: 40px"
        >
          <el-option
            v-for="item in roleslist"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRole">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //邮箱校验
    var checkEmail = (rule, value, callback) => {
      const regEmail =
        /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    //手机号校验
    var checkMobile = (rule, value, callback) => {
      const regMoblie = /^1[3|4|5|7|8][0-9]{9}$/
      if (regMoblie.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 4,
      },
      total: 0, //总条数
      userlist: [],
      //控制添加用户的对话框显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {},

      //给添加用户的表单增加校验
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },

      //控制修改用户的对话框的显示与隐藏
      editDialogVisible: false,

      //修改用户的表单数据
      editForm: {},

      //修改用户的表单的验证对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },

      //控制分配角色的对话框的显示与隐藏
      setRoleDialogVisible: false,

      //获取用户信息
      userInfo: {},

      //获取所有角色数据列表
      roleslist: [],

      //在选中新角色后的数据绑定
      setRoleId: '',
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    /**
     * 获取用户列表数据
     */
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },

    /**
     * 分页修改
     */
    handleSizeChange(val) {
      this.queryInfo.pagesize = val
      this.getUserList()
    },
    handleCurrentChange(val) {
      this.queryInfo.pagenum = val
      this.getUserList()
    },

    /**
     * 修改用户状态
     */
    async userStatusChange(row) {
      const { data: res } = await this.$http.put(
        `users/${row.id}/state/${row.mg_state}`
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },

    //关闭添加用户对话框，让里面的表单进行重置
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },

    //添加用户
    addUser() {
      //先进行预校验
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')

        //隐藏添加用户对话框
        this.addDialogVisible = false
        //重新刷新一下用户列表
        this.getUserList()
      })
    },

    //展示修改用户的对话框
    async showEditDialog(id) {
      //根据id查询用户信息
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败!')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },

    //关闭修改用户的对话框出来的关闭事件
    eidtDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },

    //修改用户信息事件
    editUser() {
      //先进行预校验
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        //发起网络请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户失败!')
        }
        //关闭对话框
        this.editDialogVisible = false
        //刷新列表
        this.getUserList()
        //提示修改用户成功
        this.$message.success('修改用户成功!')
      })
    },

    //删除用户信息
    async deleteUser(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((error) => error)
      // console.log(confirmResult)
      if (confirmResult != 'confirm') {
        return this.$message.info('取消删除用户')
      }

      //发起网络请求删除用户
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    //展示分配角色的对话框
    async showSettingRoleDialog(userInfo) {
      //在分配角色的对话框出现之前先获取用户信息
      this.userInfo = userInfo
      //要获取所有角色数据列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.roleslist = res.data
      this.setRoleDialogVisible = true
    },
    //给用户分配角色
    async setRole() {
      if (!this.setRoleId) {
        return this.$message.error('未给用户分配新角色')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.setRoleId,
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('分配角色失败！')
      }
      this.$message.success('分配角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    //分配角色的对话框的关闭事件
    setRoleclosed() {
      this.setRoleId = ''
      this.userInfo = {}
    },
  },
}
</script>

<style lang="less" scoped>
</style> 